DE68907613D1 - ARRANGEMENT WITH RIBBON FILTERS. - Google Patents
ARRANGEMENT WITH RIBBON FILTERS.Info
- Publication number
- DE68907613D1 DE68907613D1 DE8989911327T DE68907613T DE68907613D1 DE 68907613 D1 DE68907613 D1 DE 68907613D1 DE 8989911327 T DE8989911327 T DE 8989911327T DE 68907613 T DE68907613 T DE 68907613T DE 68907613 D1 DE68907613 D1 DE 68907613D1
- Authority
- DE
- Germany
- Prior art keywords
- arrangement
- ribbon filters
- ribbon
- filters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/334,431 US4963945A (en) | 1989-04-07 | 1989-04-07 | Band rejection filtering arrangement |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68907613D1 true DE68907613D1 (en) | 1993-08-19 |
DE68907613T2 DE68907613T2 (en) | 1994-03-03 |
Family
ID=23307192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE89911327T Expired - Fee Related DE68907613T2 (en) | 1989-04-07 | 1989-09-22 | ARRANGEMENT WITH RIBBON FILTERS. |
Country Status (9)
Country | Link |
---|---|
US (1) | US4963945A (en) |
EP (1) | EP0466689B1 (en) |
JP (1) | JPH0654882B2 (en) |
AU (1) | AU4407089A (en) |
CA (1) | CA1317649C (en) |
DE (1) | DE68907613T2 (en) |
ES (1) | ES2017042A6 (en) |
IL (1) | IL92251A (en) |
WO (1) | WO1990012429A1 (en) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5335363A (en) * | 1991-12-30 | 1994-08-02 | Arinc Research Corporation | Signal interference reduction device and method |
GB2284311B (en) * | 1993-11-24 | 1998-03-04 | Filtronic Ltd | Hybrid notch filter |
US5678209A (en) * | 1995-03-31 | 1997-10-14 | Lucent Technologies Inc. | Transmit power level detection circuit with enhanced gain characteristics |
US6421535B1 (en) * | 1999-05-12 | 2002-07-16 | Xetron Corporation | Superregenerative circuit |
US6553210B1 (en) * | 1999-08-03 | 2003-04-22 | Alliedsignal Inc. | Single antenna for receipt of signals from multiple communications systems |
US20020130734A1 (en) * | 2000-12-12 | 2002-09-19 | Xiao-Peng Liang | Electrically tunable notch filters |
US7720443B2 (en) * | 2003-06-02 | 2010-05-18 | Kyocera Wireless Corp. | System and method for filtering time division multiple access telephone communications |
DE602006009305D1 (en) * | 2005-12-08 | 2009-10-29 | Mitsubishi Electric Corp | BAND PASS FILTER |
US8233850B1 (en) | 2008-09-26 | 2012-07-31 | Rockwell Collins, Inc. | Broadband power amplifier with partial-envelope transference |
US8149742B1 (en) | 2009-06-26 | 2012-04-03 | Rockwell Collins, Inc. | System and method for receiving and transmitting signals |
KR101083531B1 (en) | 2009-09-01 | 2011-11-18 | 에스케이 텔레콤주식회사 | Method and coupling apparatus for dividing receiving and transmitting signal |
US8339216B2 (en) * | 2009-10-01 | 2012-12-25 | Ubidyne, Inc. | Duplexer and method for separating a transmit signal and a receive signal |
US8264298B2 (en) * | 2009-10-01 | 2012-09-11 | Unidyne, Inc. | Filtering device and a method for filtering a signal |
US8421554B2 (en) * | 2009-10-01 | 2013-04-16 | Ubidyne, Inc. | Filtering device for filtering RF signals and method for filtering RF signals |
CN102576923B (en) | 2009-11-02 | 2015-08-26 | 株式会社Kmw | Radio-frequency filter |
JP6214673B2 (en) | 2012-12-11 | 2017-10-18 | ユニバーシティ オブ サザン カリフォルニア | Passive leak canceling network for duplexer and coexisting wireless communication system |
WO2015089091A1 (en) | 2013-12-10 | 2015-06-18 | University Of Southern California | Enhancing isolation and impedance matching in hybrid-based cancellation networks and duplexers |
US9843302B2 (en) | 2014-02-14 | 2017-12-12 | University Of Southern California | Reflection and hybrid reflection filters |
WO2015123668A1 (en) | 2014-02-14 | 2015-08-20 | University Of Southern California | Hybrid-based cancellation in presence of antenna mismatch |
CN106031076B (en) | 2014-02-19 | 2020-03-06 | 南加利福尼亚大学 | Filter and duplexer based on miniature acoustic resonator |
US10581650B2 (en) | 2015-09-08 | 2020-03-03 | Qorvo Us, Inc. | Enhancing isolation in radio frequency multiplexers |
US9866201B2 (en) | 2015-09-08 | 2018-01-09 | Abtum Inc. | All-acoustic duplexers using directional couplers |
US9912326B2 (en) | 2015-09-08 | 2018-03-06 | Abtum Inc. | Method for tuning feed-forward canceller |
US9762416B2 (en) | 2015-09-08 | 2017-09-12 | Abtum Inc. | Reflection coefficient reader |
US9755668B2 (en) | 2015-09-30 | 2017-09-05 | Abtum Inc. | Radio frequency complex reflection coefficient reader |
US10038458B2 (en) | 2015-10-06 | 2018-07-31 | Abtum Inc. | Reflection-based radio-frequency multiplexers |
US10476530B2 (en) | 2015-10-12 | 2019-11-12 | Qorvo Us, Inc. | Hybrid-coupler-based radio frequency multiplexers |
WO2018057725A1 (en) | 2016-09-21 | 2018-03-29 | Abtum Inc. | Enhancing isolation in hybrid-based radio frequency duplexers and multiplexers |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2561212A (en) * | 1949-12-15 | 1951-07-17 | Bell Telephone Labor Inc | Microwave hybrid branching systems |
US3058070A (en) * | 1959-11-04 | 1962-10-09 | Reingold Irving | Microwave duplexer |
JPS5279815A (en) * | 1975-12-26 | 1977-07-05 | Nec Corp | Transmitting and receiving circuit |
DE3119420A1 (en) * | 1981-05-15 | 1982-12-16 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | "CIRCUIT ARRANGEMENT FOR TERMINATING A PASSIVE MIXER" |
US4583061A (en) * | 1984-06-01 | 1986-04-15 | Raytheon Company | Radio frequency power divider/combiner networks |
JPS63206029A (en) * | 1987-02-21 | 1988-08-25 | Nec Corp | Band pass filter |
-
1989
- 1989-04-07 US US07/334,431 patent/US4963945A/en not_active Expired - Lifetime
- 1989-09-22 JP JP1510568A patent/JPH0654882B2/en not_active Expired - Lifetime
- 1989-09-22 WO PCT/US1989/004305 patent/WO1990012429A1/en active IP Right Grant
- 1989-09-22 EP EP89911327A patent/EP0466689B1/en not_active Expired - Lifetime
- 1989-09-22 AU AU44070/89A patent/AU4407089A/en not_active Abandoned
- 1989-09-22 DE DE89911327T patent/DE68907613T2/en not_active Expired - Fee Related
- 1989-09-28 CA CA000614254A patent/CA1317649C/en not_active Expired - Fee Related
- 1989-10-20 ES ES8903533A patent/ES2017042A6/en not_active Expired - Lifetime
- 1989-11-08 IL IL92251A patent/IL92251A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO1990012429A1 (en) | 1990-10-18 |
CA1317649C (en) | 1993-05-11 |
JPH04500749A (en) | 1992-02-06 |
AU4407089A (en) | 1990-11-05 |
IL92251A0 (en) | 1990-07-26 |
EP0466689A1 (en) | 1992-01-22 |
US4963945A (en) | 1990-10-16 |
ES2017042A6 (en) | 1990-12-16 |
IL92251A (en) | 1993-02-21 |
EP0466689B1 (en) | 1993-07-14 |
DE68907613T2 (en) | 1994-03-03 |
JPH0654882B2 (en) | 1994-07-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |